Shock-absorber for motor-cars and other road-vehicles.



L. Mi BREW L E. H. REEVES. SHOCK ABSRBEB. FR MOTOR GARS AND OTHER ROAD VEHICLES.

APELIJATION FILED JUNE 6,19134 l ,086350. Patented Feb. 10, 19M.

fije?,

- axle spring and the. chassis LESLIE MADDOCK BREV AND ERNEST HENRY REEVES. OF l-.ERNE

HILL. LCNDONv ENGLAND.

Specification of Letters Patent.

Patented Feb. 10. 1914.

Application lediJune 6. 13L3. Serial No. 772.175.

Be it known that we. Lnsnir, )[.xonocii linsw and ERNEST HENRY REEVES, both subjects of the King of Great Britain. residino'. respectively, at 33() Kennington road and 3l Deronda roadf Herne HilL/both in the countyv ot' London` England. have invented certain new and useful Improvements in Shoelebsoi-bers for Motor-Cars and other Road-Vehicles. of which the following is a specification. A

This invention relates to shock absorbers of the kind that are adapted to torni a ilexilile link connection betr-:een one end ot' the ot the vehicle and that are provided with inverted shaped suspension rods or hangers. The use of these inverted U-shaped rods or hangers is attended with considerable advan tages which are too well known to need lstatement herein, but the)Y do not lend thenr selves convenientlv to shook absorbers in which more than one spring is required to be. used without undulj.v increasing: the total diameter of the shock absorber.

lt is the chief object ot' this invention to overcome this drawhael: by so eonstruetinfnr and arrangingthe parts ot the shook alisorber that instead of the inverted Usliaped suspension rods or hangers extendingthrongh the springs, the)v zan be so disposed exten nally with regard thereto.

A further object ot the invention is to provide a satisfactouv supportingv surface for the ends of the springs. without the necessity of using more than a single abutinent.plate at each end. this object hempl at tained by providingeaeh end plate with an annular circular recess. or an annular rib. and a short central stud or projection.

lith these objects in View, our improved shock absorber' comprises. the combination and arrangement ot parts now about to be described. reference Fbeing made to the ae eompanying drawings in which Figure l is an elevation showing` our-nna proved shock absorber attached to the axle and chassis springs; in this figure the de tachable casing inclosing the. si rines shown in section. Fig. of the shock absorber tekenen the iine l-l of Fig. 1 and Fig. 3 is a horizontai section taken on the line 2-2 of Fig. 2.

A A are the two helical springs arranged vertically one -within the other, the outer `s a verticai section' vided with one being stronger than the inner one. and in the example shown the said springs have oppi site convolutions.

ll B are. the end plates the upper one B ot which is made with elongated lugs or sleeves Z) 'b through which pass the suspension rods or hangers C C sutlicient plav ben ing allowed between these parts to permit the other end plate B to slide freehv on the said rods. lThe aforesaid end plates are formed with circular recesses Z1 for theI re ception of the end of the. outer springr and 'with short .studs or projections around which the ends of the inner spriiw' are arranged these recesses' and studs servingr to retain the spi-ings in position vertically. The said suspension rods (l comprise four boltsl formed b v two inverted Ushaped rodsy or hangers externally arranged with respect to the springs. .lt their upper ends the hangers pass through the elongated lugs or sleeves in the upper plate B and at their lower ends they are screw threaded and passed through holes in the lower plate B to receive retaining nuts e. The upper or curved portions of the said hangers are provided with peripherally groored dislh ff the width of the grooves being such as to aceoinniodate the bent portionsv ot the hangers, Each dish e has a central hole through which passes the. bolt o2 which serves to eonnoet the. hangers to the axle spring` l The upper end 'plate is connected io Vthe top spring ll of the chassis by a bolt e which passes through the aforesaid lugs or sleeves 7) 7) and the end of the spring E the said bolts c2 e3 being` retained in position b r lock nuts {'2* ci.

D is the light 'detachable casing surrounding the springs. This easingr is, as aforesaid. made open at the top and closed at the hottom. The said casing: is secured to the upper end plate B by the set screws d n which enable to be readil;v detached without interfering; with any of the other parts.

What we claim and desire to secure by Letters .Patent ot the United States i.' Y

l. in a` shock absorber.y the eonibinatiou with a easing an-zV a plurality of helical springs of different strengths arrmiged one within the other. top and bottom plates eaeh having a recess for receiving the ends ot' the springs, the upper of said plates being pro elongated upstanding lugs. notches formed in the ripper end of said,

` lugs, 'a plurality rofperipherally grooved `disks mo'unted near the ends 0f tbe bolt and adapted to register with said notches, and a plurality of inverted' Urshaped suspension rods havin their inclosed ends engage the groove Ofxte disks and passing through the upper `eiid plate and externally of the springs, into engagement with the lower end plate, v

2. A shook absorber comprising a single non-telescopio casing closed at the lower end thereof, two helical springs of different strengths arranged one within the other, the

ronvolutions of said springsbeing oppositely disposed, n top plate secured to the casing and provided with upwardly extending lugs, and a bottom plate within the casing, each of said plates being provided with a spring-engaging stud for the inner spring, and an annular upstanding flange to engage the outer spring`r forming a depressed spring seat adjacent the central stud for both of said members, a plurality of U-shaped sus'- pension rods arranged externally of said springs and ou o posite sides thereof, said rods connecting tlhe bottom plate with the axle spring, and means to connect the top plate to the Chassis. v

In testimo'n57 whereofl we aix our signtures in presence of two Witnesses.

LESLIE MADDOCK BREV. ERNEST HENRY REEVES. lVitnesses:

L. MnLLnRsH-JACKsoN, T. SELBY VORDLE.

Copies of this patent may be obtained for tive cents each, by addressing the Commissioner of Patenh.

' Washington, D. C. 

